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6 protocols using orbital shaker

1

Cerebral Organoid Generation and Culture

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To generate COs, 1 × 104 single cell-dissociated hESCs were plated on each well of ultralow-attachment U-bottom 96-well plates (Corning). At 24 hr after plating, BGM supplemented with 2 μM dorsomorphin and 2 μM A83-01 were added to EBs. The medium was replaced every other day. After 7 days of differentiation, COs were embedded into growth factor-reduced matrigel (Corning) droplets. Matrigel-embedded COs were transferred to 6-cm petri dishes containing BGM supplemented with 200 ng/ml laminin and 2.5 μg/ml insulin for inducing basal-apical lamination. After 2 days, COs were transferred into ultralow-attachment 6-well plates (Corning) containing BMM and cultured on an orbital shaker (Stuart). The culture medium was replaced every other day.
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Generation of Brain Organoids from hESCs

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Brain organoids were generated from hESCs as previously described 39 (link), but slightly modified. Briefly, for embryoid body (EB) formation, hESCs were washed twice with DPBS, incubated with Accutase for 5 minutes, and dissociated into single cells. 3000 single cells were seeded in each well of low attachment 96-well U-bottom plate in E8 medium containing 10 μM ROCK inhibitor and centrifuged at 100 g for 3 min, then medium was half changed every other day. On day 4, EBs were transferred to low attachment 24-well plate in neural induction medium containing DMEM-F12 (GIBCO) with 1% N2 supplement (GIBCO), 1% Glutamax supplement (GIBCO), 1% MEM-NEAA (GIBCO) and 1 μg/mL Heparin (GIBCO), and medium was changed after 48 h. On day 7, EBs were transferred into Matrigel droplets as previously described and cultured in brain organoid differentiation media containing 50% DMEM-F12, 50% Neurobasal, 200x N2 supplement, 0.025% Insulin (GIBCO), 100x Glutamax supplement, 200x MEM-NEAA, 100x penicillin-streptomycin, 0.035% 2-Mercaptoethanol and 100x B27 supplement without Vitamin A, and medium was changed after 48 h. On day 10, organoids were transferred to orbital shaker (Corning) in brain organoid differentiation media with Vitamin A, medium was changed every 4 days.
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3

Cerebral Organoid Generation and Culture

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To generate COs, 1 × 104 single cell-dissociated hESCs were plated on each well of ultralow-attachment U-bottom 96-well plates (Corning). At 24 hr after plating, BGM supplemented with 2 μM dorsomorphin and 2 μM A83-01 were added to EBs. The medium was replaced every other day. After 7 days of differentiation, COs were embedded into growth factor-reduced matrigel (Corning) droplets. Matrigel-embedded COs were transferred to 6-cm petri dishes containing BGM supplemented with 200 ng/ml laminin and 2.5 μg/ml insulin for inducing basal-apical lamination. After 2 days, COs were transferred into ultralow-attachment 6-well plates (Corning) containing BMM and cultured on an orbital shaker (Stuart). The culture medium was replaced every other day.
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4

Hindbrain Organoid Generation from hESCs

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To generate hindbrain organoids (HOs), 1 × 104 single cell-dissociated hESCs were plated on each well of ultralow-attachment U-bottom 96-well plates (Corning). At 24 hr after plating, BGM supplemented with 2 μM dorsomorphin, 2 μM A83-01, and 4.25 μM CHIR99021was added to EBs. The medium was replaced every other day. After 7 days of differentiation, HOs were embedded into growth factor-reduced matrigel (Corning) droplets. Matrigel-embedded HOs were transferred to 6-cm petri dishes. After 2 days, HOs were transferred into ultralow-attachment 6-well plates (Corning) containing BMM and cultured on an orbital shaker (Stuart). The culture medium was replaced every other day.
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5

Hindbrain Organoid Generation from hESCs

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To generate hindbrain organoids (HOs), 1 × 104 single cell-dissociated hESCs were plated on each well of ultralow-attachment U-bottom 96-well plates (Corning). At 24 hr after plating, BGM supplemented with 2 μM dorsomorphin, 2 μM A83-01, and 4.25 μM CHIR99021was added to EBs. The medium was replaced every other day. After 7 days of differentiation, HOs were embedded into growth factor-reduced matrigel (Corning) droplets. Matrigel-embedded HOs were transferred to 6-cm petri dishes. After 2 days, HOs were transferred into ultralow-attachment 6-well plates (Corning) containing BMM and cultured on an orbital shaker (Stuart). The culture medium was replaced every other day.
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6

Generating Brain Organoids from hESCs

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Brain organoids were generated from hESCs as previously described (Lancaster and Knoblich, 2014) , but slightly modified. Briefly, for embryoid body (EB) formation, hESCs were washed twice with DPBS, incubated with Accutase for 5 minutes, and dissociated into single cells. 3000 single cells were seeded in each well of low attachment 96-well U-bottom plate in E8 medium containing 10 µM ROCK inhibitor and centrifuged at 100 g for 3 min, then medium was half changed every other day. On day 4, EBs were transferred to low attachment 24-well plate in neural induction medium containing DMEM-F12 (GIBCO) with 1% N2 supplement (GIBCO), 1% Glutamax supplement (GIBCO), 1% MEM-NEAA (GIBCO) and 1 µg/mL Heparin (GIBCO), and medium was changed after 48 h. On day 7, EBs were transferred into Matrigel droplets as previously described and cultured in brain organoid differentiation media containing 50% DMEM-F12, 50%
Neurobasal, 200x N2 supplement, 0.025% Insulin (GIBCO), 100x Glutamax supplement, 200x MEM-NEAA, 100x penicillin-streptomycin, 0.035% 2-Mercaptoethanol and 100x B27 supplement without Vitamin A, and medium was changed after 48 h. On day 10, organoids were transferred to orbital shaker (Corning) in brain organoid differentiation media with Vitamin A, medium was changed every 4 days.
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